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[OM] Re: Telecentricity

Subject: [OM] Re: Telecentricity
From: Chuck Norcutt <chucknorcutt@xxxxxxxxxxx>
Date: Wed, 24 Aug 2005 10:04:15 -0400
Walt Wayman wrote:

> A quick measurement with an old plastic ruler shows the rear element of the 
> LWMNBN to be just about 14mm in diameter.  That somehow seems appropriate, I 
> suppose.  There's a certain symmetry there.
> 
> Walt
> 
> --
> "Anything more than 500 yards from 
> the car just isn't photogenic." -- 
> Edward Weston
> 
>  -------------- Original message ----------------------
> From: Chuck Norcutt <chucknorcutt@xxxxxxxxxxx>
> 
>>According to Oly a telecentric lens requires a large diameter mount 
>>compared to the size of the sensor.  They made a big point about the (OM 
>>size) mount on the E-1 being twice the width of the sensor.
-----------------------------------------

OK, where's the beef, Oly?  I just picked up and measured my 50/1.4 
(random grab) and find that its rear element is about 30mm diameter. 
Can't be a problem of physically fitting large rear elements into the 
confines of the mount diamter.

Chuck Norcutt


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